Shock Tube Study Of The Ignition Of Lean Co/h_2 Fuel Blends At Intermediate Temperatures And High Pressure

摘要

The study of the combustion characteristics of H_2/CO fuel blends is of fundamental and technical interest because the H_2/CO system is very important in the hierarchical structure of oxidation models of hydrocarbon fuels and in advanced combustion technologies such as Integrated Gasification Combined Cycle (IGCC) which are currently developed allowing a reduction of the emissions of the power generation using biogenic sources and coal as fuel. Therefore, ignition delay times of 6 different H_2/CO/O_2/Ar-mixtures (fuel: 5% H_2/ 95% CO and 50% H_2/50% CO, Φ = 0.5) were measured at pressures of about 16 bar and temperatures between 1020 and 1260 K. The data were compared to predictions of different literature mechanisms.